EXB250 Series
DC-DC CONVERTERS
•
High efficiency topology, 90% typical at 3.3 V
•
Industry standard footprint
•
Wide baseplate temperature, -40 ˚C to +100 ˚C
(natural convection)
•
90% to 110% output trim
•
No minimum load
•
Overvoltage protection
•
Remote ON/OFF
•
Available RoHS compliant
Single output
72-165 W High Efficiency DC-DC Converters
1
The EXB250 is a new high efficiency, open-frame, isolated 165 Watt converter series in an
industry standard half-brick footprint. The EXB250 delivers very high output current at low
voltages, and excellent useable power density for today’s high end applications. The design takes
advantage of open frame construction to provide a low weight, low thermal impedance baseplate
design. The seven models in the series feature an input voltage range of 33 Vdc to 75 Vdc and
are available in output voltages of 12 V, 5 V, 3.3 V, 2.5 V, 1.8 V, 1.5 V and 1.2 V. The output voltage
on each model is adjustable from 90% to 110% of the nominal value. Typical efficiencies for the
models are 90% for the 3.3 V, 88% for the 2.5 V and 87% for the 1.8 V version. The EXB250
series also has a remote ON/OFF capability. Overcurrent and overvoltage protection features are
included as standard. With full international safety approval including EN60950 (TÜV Rheinland)
and UL/cUL1950, the EXB250 reduces compliance costs and time to market.
All specifications are typical at nominal input, full load at 25 °C unless otherwise stated
TÜV
2 YEAR WARRANTY
SPECIFICATIONS
OUTPUT SPECIFICATIONS
Voltage adjustability
Set point accuracy
Line regulation
Low line to high line
Load regulation
Minimum load
Overshoot
Undershoot
Ripple and noise
Transient response
(See Note 1)
INPUT SPECIFICATIONS
Input voltage range
Input current
Input current (max.)
(See Note 3)
Input reflected ripple
(See Note 5)
48 Vin nominal
No load
Remote OFF
33-75 Vdc
145 mA max.
35 mA max.
5.7 A max. @ Io max.
and Vin = 33-75 Vdc
350 mA (pk-pk) typ.
Open collector ref to -input
Open circuit or >4.0 Vdc
<1.2 Vdc
32.5 V (typ.)
30.5 V (typ.)
10 ms (typ.)
3 ms (typ.)
At turn-on and turn-off
1.2 V, 1.5 V (Z), 1.8 V (Z),
2.5 V (Z) and 3.3 V (Z) models
5 Hz to 20 MHz
1.2 V model
All other models
Full load to min. load
90% to 110%
±1.6% max.
±0.2% max.
±0.1% max.
±0.2% max.
0%
None
None
EMC CHARACTERISTICS
Conducted emissions
Immunity:
ESD air
ESD contact
Radiated field enclosure
Conducted (DC power)
Conducted (signal)
Input transients
EN55022 (See Note 2)
EN55022 (See Note 2)
Level A
Level B
(NP)
(NP)
(NP)
(NP)
(NP)
EN61000-4-2
8 kV (NP), 15 kV
EN61000-4-2
6 kV (NP), 8 kV
EN61000-4-3
10 V/m
EN61000-4-6
10 V
EN61000-4-6
10 V
ETS 300 132-2, ETR 283
GENERAL SPECIFICATIONS
Efficiency
Operational
Switching frequency
Approvals and
standards (See Note 4)
Material flammability
Weight
MTBF
Telcordia SR-332
@ 25 °C, 100% load
ground benign
Demonstrated
Input/output
Input/baseplate
Fixed
See table
1500 Vdc
1500 Vdc
400 kHz typ.
EN60950 (TÜV Rheinland)
UL/cUL1950
UL94V-0
73 g (2.6 oz)
1,598,243 hours
>2,000,000 hours
60 mV pk-pk
20 mV rms
6% max. deviation
150 µs recovery to
within total error band
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
Operating baseplate -40 °C to +100 °C
temperature
Non-operating
-40 °C to +125 °C
Active high remote ON/OFF
Logic compatibility
ON
OFF
Undervoltage lockout
Start-up time
(See Note 6)
Power up
Power down
Power up
Remote ON/OFF
File Name: exb250s.pdf Rev (02): 06 Dec 2005
EXB250 Series
DC-DC CONVERTERS
OUTPUT
POWER
(MAX.)
72 W
90 W
108 W
150 W
165 W
165 W
165 W
INPUT
VOLTAGE
33-75 Vdc
33-75 Vdc
33-75 Vdc
33-75 Vdc
33-75 Vdc
33-75 Vdc
33-75 Vdc
OVP
1.44 Vdc
1.8 Vdc
2.2 Vdc
3 Vdc
4 Vdc
6 Vdc
14.4 Vdc
OUTPUT
VOLTAGE
1.2 V
1.5 V
1.8 V
2.5 V
3.3 V
5V
12 V
Single output
72-165 W High Efficiency DC-DC Converters
2
For the most current data and application support visit www.artesyn.com/powergroup/products.htm
OUTPUT
CURRENT
(MIN.)
0A
0A
0A
0A
0A
0A
0A
OUTPUT
CURRENT
(MAX.)
60 A
60 A
60 A
60 A
50 A
33 A
13.75 A
EFFICIENCY
(TYP.)
84.0%
85.5%
87.0%
88.0%
90.0%
91.7%
92.0%
REGULATION
LINE
±0.2%
±0.1%
±0.1%
±0.1%
±0.1%
±0.1%
±0.1%
LOAD
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
MODEL
NUMBER
(8,9)
EXB250-48S1V2J
EXB250-48S1V5J
EXB250-48S1V8J
EXB250-48S2V5J
EXB250-48S3V3J
EXB250-48S05J
EXB250-48S12J
Part Number System with Options
EXB250-48S1V2-ZRNJ
RoHS Compliance
(8,9)
J = Pb-free (RoHS 6/6 compliant)
Pin Length of Standard Product
Blank = 0.210 ” (5.33 mm)
Pin Length of Modified Standard Products
N = 0.145 ” (3.68 mm)
K = 0.110 ” (2.79 mm)
Control Logic
Blank = Positive
R = Negative
Blank = Standard Product
Z = Zero Undershoot,
Soft Turn-off Characteristic
(Applies to 1.5 V, 1.8 V,
2.5 V and 3.3 V models only)
EX
= Open Frame, Through Hole
B
= 1/2 Brick
Output Wattage Class
250 = 250 Watts
Input Voltage
48 = 48 Volts (33 Vdc to 75 Vdc range)
Number of Outputs
S = Single
Output Voltage
1V2 = 1.2 V, 1V5 = 1.5 V etc
Notes
1
2
di/dt = 0.1 A/µs, Vin = 48 Vdc, Tc = 25 °C, load change = 0.5 lo max.
to 0.75 lo max. and 0.75 lo max. to 0.5 lo max.
The EXB250 meets level A and level B conducted emissions only with
external components connected before the input pins to the converter.
See Application Note 119.
Recommended input fusing is a 10 A HRC 200 V rated fuse.
This product is only for inclusion by professional installers within other
equipment and must not be operated as a stand alone product.
Measured with no external Pi filter. Significant reduction possible with
external filter. See Application Note 119.
Start-up into resistive load.
For the pin length of Modified Standard products please consult the
factory.
The ‘J’ suffix indicates that these parts are Pb-free (RoHS 6/6) compliant.
TSE RoHS 5/6 (non Pb-free) compliant versions may be available on
special request, please contact your local sales representative for details.
NOTICE: Some models do not support all options. Please contact your
local Artesyn representative or use the on-line model number search tool at
http://www.artesyn.com/powergroup/products.htm to find a suitable
alternative.
PROTECTION
Short circuit
Overvoltage
TELECOM SPECIFICATION
Central office interface A
ETS300-132-2 input voltage
and current requirements
Continuous
Non-latching clamp
3
4
5
6
7
8
CAUTION: Hazardous internal voltages and high temperatures.
Ensure that unit is not user accessible.
9
File Name: exb250s.pdf Rev (02): 06 Dec 2005
EXB250 Series
DC-DC CONVERTERS
Ø0.040
(7 PLS)
4
6
BOTTOM
7
VIEW
8
2
3
1
9
5
Single output
72-165 W High Efficiency DC-DC Converters
3
For the most current data and application support visit www.artesyn.com/powergroup/products.htm
Ø0.080
(2 PLS)
1.700 [43.18]
1.300 [33.02]
1.000 [25.40]
0.700 [17.78]
0.300 [7.62]
0.000 [0.00]
0.500 [12.70]
*0.21 [5.33]
M3x0.5 Threaded
Through (4 PLS)
2.280 [57.91]
*Standard available pin length.
0.145 (3.68) and 0.110 (2.79)
options also available. (See
Notes 8 and 9 for ordering details).
2.000
[50.80]
TOP
VIEW
2.400
[60.96]
0.200 [5.08]
0.190 [4.83]
1.900 [48.26]
Ø0.128 [Ø3.25]
(4 PLS)
Ø0.094 [Ø2.39]
(2 PLS)
1
2
3
4
9
8
7
6
5
0.000 [0.00]
0.300 [7.62]
0.700 [17.78]
1.300 [33.02]
1.700 [43.18]
Ø0.054 [Ø1.37]
(7 PLS)
1.000 [25.40]
ALL DIMENSIONS IN INCHES [mm]
Recommended Hole Pattern
PIN CONNECTIONS
PIN NUMBER
1
2
3
4
5
6
7
8
9
FUNCTION
+Vin
Remote On/Off
No Function
-Vin
-Vout
-Sense
Trim
+Sense
+Vout
International Safety Standard Approvals
UL/cUL : UL1950 File No. E135734
TÜV
TÜV Rheinland File No. 10401-336-0209. Licence No. 40013414
CB Scheme No.DE1-32227
Datasheet © Artesyn Technologies® 2005
The information and specifications contained in this datasheet are believed to be correct at time of publication. However, Artesyn Technologies accepts no responsibility for consequences arising
from printing errors or inaccuracies. The information and specifications contained or described herein are subject to change in any manner at any time without notice. No rights under any patent
accompany the sale of any such product(s) or information contained herein.
Please consult our website for the following items:
Application Note
Longform Datasheet
www.artesyn.com
File Name: exb250s.pdf Rev (02): 06 Dec 2005
